Year	% of GDP
1976	26.996213466470394
1977	27.378523895683443
1978	27.90803939025304
1979	25.378200013367042
1980	23.00859503488279
1981	21.649926896751374
1982	17.672502960202674
1983	17.781430085450438
1984	17.830952455754634
1985	18.40664171798708
1986	19.483859756842765
1987	21.08103717308056
1988	27.830151365845907
1989	25.73986902069559
1990	30.176859274213356
1991	28.071784159874845
1992	27.2308602230323
1993	27.585393091321848
1994	29.95469176525656
1995	23.175381773908907
1996	24.503225831076065
1997	25.440043036530497
1998	22.556333293409992
1999	26.568506492186977
2000	22.243757462139016
2001	22.012375300473455
2002	21.138405070534866
2003	22.1967621591913
2004	21.419098855142554
2005	21.194477341641363
2006	23.19513617804101
2007	23.995439068065245
2008	23.756569828392916
2009	25.511043474684325
2010	24.157593430251627
2011	23.459157349076204
2012	22.582733484673913
2013	20.565908253866475
2014	18.481282674453166
2015	16.898768458863106
2016	16.750815423796972
2017	16.81043689371718
2018	18.046703609860675
2019	19.086794191850156
2020	17.13532082499766
2021	19.594533914499998
2022	19.749157028960386
2023	23.521062790961736